19,879
edits
Changes
→Key Stage 4
*[[Uranus]]
*[[Neptune]]
===Formation of The Solar Systems===
#A large cloud of [[gas]]] and dust called a [[nebula]] collapsed due to [[gravity]] to form a [[The Sun]].
#Some of the leftover [[gas]] and dust formed a spinning disk held in [[orbit]] around the newly formed [[Sun]] by [[gravity]].
#[[The Sun]]s [[radiation]] caused the [[gas]] to spread further away from the centre of the disk leaving behind the dust.
#[[Gravity]] between the [[particle]]s of dust caused them to clump together to form [[asteroid]]s.
#Over millions of [[year]]s [[gravity]] caused the [[asteroid]]s to collide to form bigger and bigger [[asteroid]]s until they were so large that they had enough [[gravity]] to pull their [[matter]] in to a [[sphere|spherical]] shape and become [[Dwarf Planet|dwarf planets]].
#Eventually the some of the [[Dwarf Planet|dwarf planets]] swept enough [[material]] out of their [[orbit]]al paths that they became [[planet]]s.
: The [[planet]]s closest to [[The Sun]] collected very little [[gas]] and became [[Rocky Planet|rocky planets]].
: The [[planet]]s furthest from [[The Sun]] collected a large amount of [[gas]] and became [[Gas Giant|gas giant]]s.